A requirement based on a specifi c spell measures whether
the character or creature in question is capable of producing
the necessary effect, and as such, invocations and spell-like
abilities that generate the relevant effect meet the requirements
for specifi c spell knowledge. For example, a prestige
class with a spellcasting requirement of “Must know (or be
able to cast) darkness” is met by a warlock who chooses darkness
as one of her invocations, or by any creature with darkness as
a spell-like ability.
第二個情況則是可以,不過要已經選了這個邪術才行
原來書上寫的還是很詳細的
